Page 58 - Basic Course
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KNX BASIC COURSE
17 Backbone- /Line coupler classical structure
Backbone‐/ Line coupler classic
Line 1.5 Line 2.5
LC LC
1.5.0 Floor 5 2.5.0
Line 1.4 LC Floor 4 LC Line 2.4
1.4.0 2.4.0
Main line 1.0 Main line 2.0
Line 1.3 LC Floor 3 LC Line 2.3
1.3.0 2.3.0
Line 1.2 LC LC Line 2.2
1.2.0 Floor 2 2.2.0
Line 1.1 LC LC Line 2.1
1.1.0 Floor 1 2.1.0
Area 1 Area 2
BC BC
(West wing) 1.0.0 Backbone line 0.0 2.0.0 (East wing)
Figure 17: Backbone- /Line coupler classical structure
Of course it will not be possible to realize this under all circumstances. As line repeaters
can be installed (as already indicated before), such a floor may be equipped with up to
253 devices, without having to violate the above structure (taking into account that line
repeaters have to be counted double as discussed before, the normal maximum number
of devices of 256 is reduced by 3). With that many devices it is possible to realize nearly
any application, thanks to the current evolution in the development of KNX devices and
the availability of input - / output devices with in the mean while more than 16 channels.
Home and Building Management Systems KNX Association
KNX TP Topology Topology_E1213a 19/24
